Method of making packages



Aug. 12, 1952 o. H. HULTlN METHOD OF MAKING PACKAGES Original Filed March 16, 1946 2 SHEETS-SHEET l Aug. 12, 1952 o. H. HULTIN METHOD OF MAKING PACKAGES 2 SHEETSSHEET Original Filed March 16, 1946 Arrow/var Patented Aug. 12, 1952 'METHDD OF MAKING PACKAGES Oscar H. Hultin, Quincy, Mass., assignor to Pneumatic Scale Corporation, Masa, a corporation of Massachusetts Limited, Quincy,

Original application March 16, 1946, Serial No. 654,903 Divided and this application May 28, 1947, Serial No. 751,105

1 ,Claim. 1

This invention relates to a method of making a package. I

The object of the invention is to provide a novel, efficient and economical method of producing a package of a type which may be used with advantage as an individual cereal package.

With this general object in view, and such others as may hereinafter appear,'the invention consists in the method of making a package, and in the various structures, arrangements and combinations of parts hereinafter described and particularly defined in the claim at the end of this specification.

In the drawings, Figs. 1 to 4 illustrate in perspective successive steps which are preferably employed in the formation of the lined carton in a condition ready to be filled with the commodity to be packaged; Fig. 5 is a perspective illustrating the filled carton just prior to the formation of the top closure therefor; Figs. 6, '7 and 8 are details in perspective illustrating the positions occupied by the flaps and top closure during successive steps in the formation of the package; and Fig. 9 is a perspective illustrating the completed package.

In general, the present invention contemplates a novel construction of package comprising'a bag rectangular in section for containing the commodity to be packaged. The bag may and preferably will be formed of any of the usual or preferred bag forming materials such as parchment paper, but preferably the bag is constructed of cellophane or other relatively strong transparent paper. The top of the bag is closed after the bag has been filled, by an elongated closure, preferably of the pull-out type, which is folded down onto the upper surface of the bag, providing triangular end tabs which are subsequently folded inwardly. In order to protect the bag to enable it to be satisfactorily handled during shipment without breakage, a sleeve of relatively stiffer, stronger and heavier sheet material, such for example as carton board forming material, is wrapped about the bottom, two sides and the top of the bag so as to leave the two side panels of the bag unprotected and through which the packaged commodity is visible for display purposes. The sleeve may and preferably will be formed by an elongated strip of the stiffer board forming material, and as it is wrapped about the bottom and two sides of the bag, the ends of the strip are folded inwardly upon the top of the upper surface of the bag, preferably into overlapping relation and with one of the triangular end flaps of the top closure interleaved between the contacting surfaces of the overlapped portions of the strip. The overlap- .ping ends of the strip are adhesively secured to one another providing a completed package which may be economically manufactured and handled during shipment and use exactly as an ordinary lined package; In addition lthe construction of-the package-lends itself to convenient opening and the retention-of the top closure of the bag in such. condition that it may be subsequently closed to preserve-the contents of the package.

I i I Referring now to the drawing, the successive steps by Which the present package may be produced in a condition ready to be filled are illustrated in Figs. 1. to 5.v The bag is preferably formed by being wrapped about a forming block ID in the manner illustrated in Fig. 1, the side seam l2 being overlapped uponthe opposed panel and adhesively secured thereto. The bottom of the bag may and preferably will be closed by any usual or preferred type of closure, preferably by an elongated pull-out type of closure IS with the triangular end tabs l1, l8 folded toward one another and upon the bottom of the bag, as illustrated in Fig. 3. The bag in this condition and while supported upon the mandrel 10, has preferably secured to it the bottom and side forming panels 20, 22, of the strip of carton board forming material or other relatively strong sheet material, as by being spot glued as at 33 to the bottom and opposite sides, and in the preferred method the strip is arranged to cover the side seam I2 of the bag. Thereafter the bag with the strip may be removed from the forming block, producing the structure illustrated in Fig. 4. In this condition the opened bag with its attached strip may be filled with the commodity to be packaged, being capable of being handled in any of the standard filling machines now upon the market and which are adapted to handle rectangular cartons.

After the filling operation has been completed, provision is made for closing the top of the bag, and for this purpose the portions 24, 26 of the two sides of the strip projecting above the score line defining the top of the body of the package may be folded outwardly and the top of the bag closed by an elongated pulled out closure 28 formed in any of the standard top closing machines now used for producing this type of a closure. The upstanding tab 29 of the closure is folded upon itself and then down upon the top of the bag, providing triangular end tabs 30, 32 which project onto the outleaving the triangular end tab between the overlapped portions of the strip and anchoring the bag to the protecting sleeve thus formed.

From the description thusfar it will be observed that the present package is attractive in appearance, and utilizes a minimum amount of the heavier carton forming board. The pro tecting sleeve imparts rigidity and strength to the package enabling it to successfully withstand shipment and handling. The fact that the two opposed wide side panels of the bag are uncovered by the sleeve and therefore exposed adds to the utility of the package for display purposes, as in. thoseinstances where the bag is constructed of transparent material such as cellophane the packaged commodity is clearly visible through such transparent side panels of the package.

While the preferred type and construction of package and the preferred method'of making the same have been herein illustrated and described, it will be understood that other forms of top closures for the bag may be utilized and that the protective sleeve may take other forms within the scope of the following claim.

This application is a division of my Patent No. 2,494,177, issued January 10, 1950.

Having thus described the invention, what is claimed is:

In the method of making a package comprising a filled inner bag cubical in shape and an outer protective open-ended sleeve embracing the top,

I body of the bag, removing the assembly from the mandrel, then filling the 'bag, closing the top thereof with an elongated closure disposed parallel to the two unprotected sides of the bag, then folding down one projecting portion of the strip, and subsequently folding and adhesively securing the second projecting portion of the strip upon the upper surface of the projecting folded portion and with a portion of the elongated top closure interleaved between the overlapped portions of the strip.

OSCAR H. HULTIN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date Re. 20,789 Bergstein July 12, 1938 1,633,247 Evans et a1 June 21, 1927 2,045,230 Howard June 23, 1936 2,115,802 Dann, Jr May 3, 1938 2,349,732 Howard May 23, 1944 FOREIGN PATENTS Number Country Date 429,241 Great Britain May 27, 1935 

